[Jewelry making - Article 00076] - Re: [Orchid] silver soldering and acids

[Fishbre396]

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>         Since it's come up about the toxicity of Sparex.....does
>     anyone know how long you can use the same batch of Sparex and
>     the safest way to dispose of the Sparex when one can no longer
>     use it?? I like the idea about citric acid and will try that
>     when I run out of Sparex!  


    I use Sparex until it turns a funny color (Usually a dark
    greenish blue.) Then, I dump it into a kitty litter box (the
    kitty went to kitty heaven a few years ago,) and let the liquid
    evaporate.  Then, every once in a while, I scrape the dried stuff
    into a plastic bag and throw it away.  Although, if it is useable
    in Swimming Pools as an acid, I doubt that it is very toxic in
    water . . . one could dump it down the drain without too much
    worry? 

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